docs: def com_google_fonts_check_family_panose_familytype(ttFonts):
    """Fonts have consistent PANOSE family type?"""
    failed = False
    familytype = None
    for ttfont in ttFonts:
      if familytype is None:
        familytype = ttfont['OS/2'].panose.bFamilyType
      if familytype != ttfont['OS/2'].panose.bFamilyType:
        failed = True
  
    if failed:
      yield FAIL, ("PANOSE family type is not"
                   " the same accross this family."
                   " In order to fix this,"
                   " please make sure that the panose.bFamilyType value"
                   " is the same in the OS/2 table of all of this family"
                   " font files.")
    else:
      yield PASS, "Fonts have consistent PANOSE family type."